Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 16:33

General

  • Target

    f325ee7a242e62a3685763de8d71db15.dll

  • Size

    873KB

  • MD5

    f325ee7a242e62a3685763de8d71db15

  • SHA1

    3439a0a62364526a7bcecda134f532d20e578bc0

  • SHA256

    064dd0fe494677278bb6d1bc0bc811f872b583604d27a81258023f7c695c0a20

  • SHA512

    549c34b5e9f097b91c26c1bf37688eb60169cef025a0466212536446494cda53e4f08d626cdf6ec97c393f18b9119543d1064da7783390438f6519aea631ebb1

  • SSDEEP

    24576:Zxru6GOISSgyFCsIysmcWy0WToFwYqOss:Zw6jsgyzGTQ

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 'dmod' strings 9 IoCs

    Detects 'dmod' strings in Dridex loader.

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f325ee7a242e62a3685763de8d71db15.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:1936
  • C:\Windows\system32\WindowsAnytimeUpgradeResults.exe
    C:\Windows\system32\WindowsAnytimeUpgradeResults.exe
    1⤵
      PID:576
    • C:\Users\Admin\AppData\Local\uh5D\WindowsAnytimeUpgradeResults.exe
      C:\Users\Admin\AppData\Local\uh5D\WindowsAnytimeUpgradeResults.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:472
    • C:\Windows\system32\RDVGHelper.exe
      C:\Windows\system32\RDVGHelper.exe
      1⤵
        PID:1784
      • C:\Users\Admin\AppData\Local\1eHhzG\RDVGHelper.exe
        C:\Users\Admin\AppData\Local\1eHhzG\RDVGHelper.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:1984
      • C:\Windows\system32\PresentationSettings.exe
        C:\Windows\system32\PresentationSettings.exe
        1⤵
          PID:1044
        • C:\Users\Admin\AppData\Local\NpffJU\PresentationSettings.exe
          C:\Users\Admin\AppData\Local\NpffJU\PresentationSettings.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:2888

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\1eHhzG\dwmapi.dll

          Filesize

          875KB

          MD5

          196598ff5ca15cf9e0707217dc6d7b29

          SHA1

          b922c0ee6765e9ae8da0c2adfe77e0a750c59303

          SHA256

          beb9ab605985ae7fd93625e8add4b495670c22ad1d82d7f0cc791e00e8bdb516

          SHA512

          a97b2082adc8c2181a8493a9b63acf3967bfb7716f257185dfc187cc2fc1d725fe13b8341e33b28c13204cda06065332348816ffea6426273725772604e13c82

        • C:\Users\Admin\AppData\Local\NpffJU\Secur32.dll

          Filesize

          877KB

          MD5

          7217453a9effb28e36dd6885c8352856

          SHA1

          5634b120fec22840c0839af617a9bf361753dd94

          SHA256

          90484abccb733d75d4821fbfb338799d4edadfcff96dbe801b565afc4f3a3480

          SHA512

          a5b9acf48b5f0378113cdec10d61773890f07bbb46bc01d789ca435319860354930f5779e70212cbfbe0b41c54f12f2964621ed6cbf9ae97859e76bf79100d62

        • C:\Users\Admin\AppData\Local\uh5D\WINBRAND.dll

          Filesize

          874KB

          MD5

          caecc633f69c34100f93c328738c6eeb

          SHA1

          b4fa93e24f142d98b17a852d78cc7dbe22f6c23c

          SHA256

          797c1e567d949944e768e7fdf8ce146ba65ef18c0c07dd478864965a4a714549

          SHA512

          926dc72d637aca0771c6f7ee42e025d6ac9a80530a4e03893f8ee0fbde3cd07d7ecccfcf28e67a8bcff1b15206a9056f30ef1820b933cb110458052d0d0851a3

        • C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Yiudzqwx.lnk

          Filesize

          1KB

          MD5

          fd8e6868846e14ed5d416aaf1b781911

          SHA1

          c226e4a9fa0b1b94091f4984b6f7d9c8f82c1734

          SHA256

          b80db88bac303296cb065106ca51e9a57aa282b2700995b5d83cc52c0451490f

          SHA512

          eecbf5cada50937f88b6d9eacce5e90369ae50cf32204aa89d57febdd8128e079c4974fcb112cdde02504ab926adb901e5ef0243cbcfe3cb52385211c8b0ab9a

        • \Users\Admin\AppData\Local\1eHhzG\RDVGHelper.exe

          Filesize

          93KB

          MD5

          53fda4af81e7c4895357a50e848b7cfe

          SHA1

          01fb2d0210f1c47aaf684e31a9fb78f89bba9c0f

          SHA256

          62ab8c2c5b5bd84fd07e96b6a3b87a4ea56946107ed9b7f8076580ae1fefd038

          SHA512

          dbbda90a57d27160c5a3a5e4e94cfc43b1663fcbfe424fdec851e52356f61492bdcf677c46be8aa4e8ccc8be7c389b6aa7bbbce8447e1fae32f03e5e409f4051

        • \Users\Admin\AppData\Local\NpffJU\PresentationSettings.exe

          Filesize

          172KB

          MD5

          a6f8d318f6041334889481b472000081

          SHA1

          b8cf08ec17b30c8811f2514246fcdff62731dd58

          SHA256

          208b94fd66a6ce266c3195f87029a41a0622fff47f2a5112552cb087adbb1258

          SHA512

          60f70fa8a19e6ea6f08f4907dd7fede3665ad3f2e013d49f6649442ea5871a967b9a53ec4d3328a06cb83b69be1b7af1bb14bf122b568bd1f8432ee1d0bfee69

        • \Users\Admin\AppData\Local\uh5D\WindowsAnytimeUpgradeResults.exe

          Filesize

          288KB

          MD5

          6f3f29905f0ec4ce22c1fd8acbf6c6de

          SHA1

          68bdfefe549dfa6262ad659f1578f3e87d862773

          SHA256

          e9c4d718d09a28de8a99386b0dd65429f433837c712314e98ec4f01031af595b

          SHA512

          16a9ad3183d7e11d9f0dd3c79363aa9a7af306f4f35a6f1e0cc1e175ef254e8052ec94dfd600dbe882f9ab41254d482cce9190ab7b0c005a34e46c66e8ff5f9e

        • memory/472-58-0x0000000140000000-0x00000001400E3000-memory.dmp

          Filesize

          908KB

        • memory/472-53-0x0000000140000000-0x00000001400E3000-memory.dmp

          Filesize

          908KB

        • memory/472-52-0x0000000000090000-0x0000000000097000-memory.dmp

          Filesize

          28KB

        • memory/1224-13-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-11-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-15-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-16-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-17-0x0000000002590000-0x0000000002597000-memory.dmp

          Filesize

          28KB

        • memory/1224-24-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-25-0x0000000077A21000-0x0000000077A22000-memory.dmp

          Filesize

          4KB

        • memory/1224-26-0x0000000077BB0000-0x0000000077BB2000-memory.dmp

          Filesize

          8KB

        • memory/1224-35-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-4-0x0000000077816000-0x0000000077817000-memory.dmp

          Filesize

          4KB

        • memory/1224-37-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-12-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-5-0x00000000025B0000-0x00000000025B1000-memory.dmp

          Filesize

          4KB

        • memory/1224-14-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-10-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-9-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-63-0x0000000077816000-0x0000000077817000-memory.dmp

          Filesize

          4KB

        • memory/1224-8-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1224-7-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1936-1-0x0000000000290000-0x0000000000297000-memory.dmp

          Filesize

          28KB

        • memory/1936-38-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1936-0-0x0000000140000000-0x00000001400E2000-memory.dmp

          Filesize

          904KB

        • memory/1984-71-0x0000000000100000-0x0000000000107000-memory.dmp

          Filesize

          28KB

        • memory/1984-77-0x0000000140000000-0x00000001400E3000-memory.dmp

          Filesize

          908KB

        • memory/2888-89-0x0000000000190000-0x0000000000197000-memory.dmp

          Filesize

          28KB

        • memory/2888-95-0x0000000140000000-0x00000001400E3000-memory.dmp

          Filesize

          908KB